title: 2-Amino-5-methyl-3-(2-oxo-2-phenyl-eth-yl)-7-phenyl-4,5,6,7-tetra-hydro-3H-[1,2,4]triazolo[1,5-a]pyrimidin-8-ium bromide ethanol monosolvate.
abstract: In the title compound, C20H22N5O(+)·Br(-)·C2H6O, the tetra-hydro-pyrimidine ring of the bicyclic cation adopts a half-chair conformation with an equatorial orientation of the phenyl and methyl substituents. The amino group is nearly coplanar with the 1,2,4-triazole ring [interplanar angle = 4.08 (8)°] and has a slightly pyramidal configuration. The mean planes of the triazole ring and the benzene ring of the phenacyl group form a dihedral angle of 88.58 (7)°. In the crystal, N-H⋯Br, N-H⋯O and O-H⋯Br hydrogen bonds link the cations, anions and ethanol mol-ecules into layers parallel to the bc plane.
authors.affiliation: South-Russia State Technical University, 346428 Novocherkassk, Russian Federation.
authors.forename: Victor M
authors.initials: VM
authors.lastname: Chernyshev
authors.forename: Dmitriy A
authors.initials: DA
authors.lastname: Pyatakov
authors.forename: Kyrill Yu
authors.initials: KY
authors.lastname: Suponitsky